A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-seismic construction process for urban expressway viaduct
The invention discloses an anti-seismic construction technology for an urban expressway viaduct. The anti-seismic construction technology comprises the steps that firstly, anti-seismic design is conducted; 2, foundation treatment; thirdly, pile foundation construction is conducted; step 4, assembling the segmental beams; step 5, loading and pre-pressing; step 6, paving a bridge deck; 7, reinforcement and protection are conducted; step 8, acceptance and maintenance; the reasonable natural vibration period of the friction pendulum support is designed to be smaller than the system period of the viaduct main body structure, meanwhile, the system period of the segmental box girder is close to that of the supporting joint, the good anti-seismic effect is achieved, meanwhile, relative displacement of the girder ends is reduced, and the possibility of mutual collision is reduced; the working procedures of formwork erecting, reinforcing steel bar binding, cast-in-place and the like are omitted on site, the site construction difficulty is reduced to the maximum extent, the site construction quality is guaranteed, interference to the surrounding environment and traffic is avoided, and good economic and environmental benefits are achieved.
本发明公开了一种用于城市快速路高架桥的抗震施工工艺，包括步骤一，抗震设计；步骤二，地基处理；步骤三，桩基施工；步骤四，节段梁拼装；步骤五，加载预压；步骤六，桥面铺装；步骤七，加固与防护；步骤八，验收与维护；本发明设计有摩擦摆支座的合理自振周期，使其小于高架桥主体结构体系周期，同时使节段箱梁与支撑节点的体系周期接近，在获得良好抗震效果的同时，降低了梁端的相对位移，降低了相互碰撞的可能，通过节段预制以及悬臂拼装，现场省去了支模板、绑扎钢筋及现场浇筑等工序，最大限度地减少了现场施工难度，确保了现场施工质量，避免了对周围环境和交通的干扰，有着较好的经济和环境效益。
Anti-seismic construction process for urban expressway viaduct
The invention discloses an anti-seismic construction technology for an urban expressway viaduct. The anti-seismic construction technology comprises the steps that firstly, anti-seismic design is conducted; 2, foundation treatment; thirdly, pile foundation construction is conducted; step 4, assembling the segmental beams; step 5, loading and pre-pressing; step 6, paving a bridge deck; 7, reinforcement and protection are conducted; step 8, acceptance and maintenance; the reasonable natural vibration period of the friction pendulum support is designed to be smaller than the system period of the viaduct main body structure, meanwhile, the system period of the segmental box girder is close to that of the supporting joint, the good anti-seismic effect is achieved, meanwhile, relative displacement of the girder ends is reduced, and the possibility of mutual collision is reduced; the working procedures of formwork erecting, reinforcing steel bar binding, cast-in-place and the like are omitted on site, the site construction difficulty is reduced to the maximum extent, the site construction quality is guaranteed, interference to the surrounding environment and traffic is avoided, and good economic and environmental benefits are achieved.
本发明公开了一种用于城市快速路高架桥的抗震施工工艺，包括步骤一，抗震设计；步骤二，地基处理；步骤三，桩基施工；步骤四，节段梁拼装；步骤五，加载预压；步骤六，桥面铺装；步骤七，加固与防护；步骤八，验收与维护；本发明设计有摩擦摆支座的合理自振周期，使其小于高架桥主体结构体系周期，同时使节段箱梁与支撑节点的体系周期接近，在获得良好抗震效果的同时，降低了梁端的相对位移，降低了相互碰撞的可能，通过节段预制以及悬臂拼装，现场省去了支模板、绑扎钢筋及现场浇筑等工序，最大限度地减少了现场施工难度，确保了现场施工质量，避免了对周围环境和交通的干扰，有着较好的经济和环境效益。
Anti-seismic construction process for urban expressway viaduct
一种用于城市快速路高架桥的抗震施工工艺
SUI XIAOKANG (author) / YANG HONGTAO (author) / WANG WENGANG (author) / LUAN YUNZHENG (author)
2024-11-01
Patent
Electronic Resource
Chinese
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